He found the steel collision-mat in place, and the welding of it nearly completed.
"Astounding Stories, February, 1931" by Various
In order to give as many as possible practice at this drill it was gone through with a number of times, several collision mats being used.
"Two Boys of the Battleship" by Frank V. Webster
The picalilly man tops his boom, stands to the eastward and tries to put his collision mat over.
"With the Battle Fleet" by Franklin Matthews